Serbay Shentyurk
PhD Researcher in Laser Assisted Cold Spray (LACS) for Ni based superalloys
The project focus on process development of laser-assisted cold spray (LACS) – also known as Supersonic Laser Deposition (SLD) - for Ni-based corrosion resistant alloys (CRA) for structural repairs. Deposition of high strength, corrosion-resistant alloys with cold spray (CS) technology still have challenges due to the low plasticity of Ni based superalloys materials compared to other alloys. Deposition efficiency is not enough in the critical velocities for CRA materials using the Cold Spray process.
The aim of this project is to combine of Cold Spray process with Laser Beam technology within various arrangement of laser beam on the substrate as -pre, -post and coaxial with CS gun to improve the deposition efficiency and mechanical properties of Ni-based CRA materials as-sprayed on the substrate. The main advantage of Cold spray process compared to other laser fusion methods is non melting process. Combining of CS with Laser Technology find a place for improvement of bonding efficiency without melting of particle and substrate and decreasing required particle velocities to bond to the surface. Various process parameters window between CS and LACS process will be researched and powder properties' effects on mechanical properties with microstructural will be investigated.